Data from wind tunnel tests of a powered propeller and nacelle mounted on a supercritical wing are analyzed. Installation of the nacelle significantly affected the wing flow and the flow on the upper surface of the wing is separated near the leading edge under powered conditions. Comparisons of various theories with the data indicated that the Neumann surface panel solution and the Jameson transonic solution gave results adequate for design purposes. A modified wing design was developed (Mod 3) which reduces the wing upper surface pressure coefficients and section lift coefficients at powered conditions to levels below those of the original wing without nacelle or power. A contoured over the wing nacelle that can be installed on the original wing without any appreciable interference to the wing upper surface pressure is described.


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    Titel :

    Analysis of Mach Number 0.8 Turboprop Slipstream Wing/Nacelle Interactions


    Beteiligte:
    H. R. Welge (Autor:in) / D. H. Neuhart (Autor:in) / J. A. Dahlin (Autor:in)

    Erscheinungsdatum :

    1981


    Format / Umfang :

    84 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




    Analysis of Mach number 0.8 turboprop slipstream wing/nacelle interactions

    Welge, H. R. / Neuhart, D. H. / Dahlin, J. A. | NTRS | 1981



    Propeller Slipstream Wing Interactions at Mach No. 0.8

    Bencze, Daniel P. / Welge, H. Robert / Crowder, James P. et al. | SAE Technical Papers | 1978


    Measurements of the Propeller Slipstream Interaction with a Nacelle and Wing

    Barber, D. J. / Nelson, T. E. / American Institute of Aeronautics and Astronautics et al. | British Library Conference Proceedings | 1996


    Measurements of the Propeller Slipstream Interaction with a Nacelle and Wing

    Barber, D. J. / Nelson, T. E. | British Library Online Contents | 1996